Antarctic Soil Hydrocarbon Contamination Geophysical Survey Data

Geophysical survey data from 2002 investigates hydrocarbon contamination in Antarctic soils at Scott Base, Marble Point, Bull Pass, and Lake Vida. The dataset includes electromagnetic and ground-penetrating radar readings taken on a grid to analyze soil electrical structure and seasonal changes. It was collected by SCIOPS to understand contamination's geophysical signature across different sites and years.

Use Cases

• Analyze seasonal variation in soil resistivity by comparing electromagnetic survey data from December and February.
• Model the anisotropic effect in soil using orthogonal orientation readings from the EM31 survey points.
• Compare geophysical responses across different Antarctic sites (Bull Pass, Marble Point, Lake Vida) to assess soil and climate influences.
• Validate ground-penetrating radar (GPR) signal patterns from 200 MHz antennae against known spill locations at Scott Base.
• Investigate year-to-year variations in contamination response by analyzing data from repeated surveys at the same sites.

Strengths

• Multi-site coverage includes four distinct Antarctic locations: Scott Base, Marble Point, Bull Pass, and Lake Vida.
• Temporal replication with surveys repeated in a subsequent year to examine inter-annual variation.
• Structured spatial sampling with EM31 data on a 2m x 2m grid and GPR lines at 2m spacings.

Limitations

• Data is temporally stale, with the last known update in January 2002.
• Specific sample sizes, row counts, and file formats are unknown.
• Geographic scope is limited to specific Antarctic field sites, reducing generalizability.

Provenance

Source

NASA Earthdata, provided by organization SCIOPS.

Collection Method

Field surveys using electromagnetic (EM31) and ground-penetrating radar (GPR with 200 MHz antennae) instruments.

Time Range

Surveys conducted across at least two seasons, with data from December and February, and repeated the following year. Last updated 2002.

Freshness

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Geography

Antarctic sites: Scott Base, Marble Point, Bull Pass, and Lake Vida.